TDR Rotrex Kit Development News
We are developing our own TDR ROTREX Supercharger System with three levels, Base, Street and Track and will be available for all 90-05 Miatas. We will include TDR electronic fuel and timing cards for low to mid boost levels on the Base and Street levels. Higher boost and track applications will use optional fuel and timing management like the Mega Squirt for 90-00 Miatas or Greddy Emanage for 01-05 Miatas and or if you need to keep it OBDII emissions compliant. There are no plans for CARB certification.
Any kit can be upgraded as you go. The TDR I/C will be included in the Street and Track versions and can be used for both street and track applications. The Track version uses the C30-94 Rotrex. Our 96R with this S/C has around 320 RWHP at 19 PSI. We use Mega Squirt for fuel management. This option requires a built motor which we can also provide.
The Base and Street will be using the smaller C30-74 Rotrex unit. This unit was capable of 225 RWHP at 12 PSI on a 99-00 model we did a while back.
We are not far off on having our kit, but we need to take more pictures and write up the installation instructions. We are also in the process of developing our own S/C mounting system. Our new TDR S/C mount uses a 4-rib setup for the Base and Street option and allows for P/S and A/C. The same bracket also uses a 6-rib for the Track option if P/S and A/C are eliminated. This will also require a TDR 6-rib crank pulley.
We wish it was not taking so long to develop, but good things come to those who wait. We are finishing up our brackets for the oil cooler which will be behind the front bumper on the driver’s side, oil reservoir bracket and our own heavy-duty SC mount. The kit is not going to be difficult to install. Drivability will be good with good idle control even with A/C.
We expect the Base setup will be around $3300. The Street option, around $4600. The Track version will likely come in less at around $4300 but will not include fuel management or injectors. All these kits will bring worthwhile improvements along with the outstanding quality you expect from us.
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This is the 1.8 Kit with our TDR I/C which will be standard on the Street and Track versions
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You can also see our new Radical Splitter for the Racing Beat Type II Nose.
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Two different Rotrex units will be available depending on your desired power level. The C30-74 for the Base and Street versions is on the left and the C30-94 for the Track version is on the right.
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Free Flow K&N Intake with heat resistant silicone tubing will be standard.
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Close up of our mock-up S/C bracket. It will have additional bracing for durability and strength.
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6-Rib Track version will be an option with power steering and A/C delete.
